Develop Bugs

MHL cuts off the WIFI and Phone signal

hi.
i just got a MHL cable for my SGS2
when i plugged it to my tv, it cuts of the wifi and the phone signal... so i can't receive calls or surf the internet ...
i tried two different phones with different roms and different kernels and got the same result...
anyone had this problem and knows how to use MHL and have WIFI and phone signal?
thanks

What cable? Samsung's or generic?

Have you tried this on stock unrooted or rooted firmware?

Omega Frost said:
What cable? Samsung's or generic?
Click to expand...
Click to collapse
generic cable.
tonycfc said:
Have you tried this on stock unrooted or rooted firmware?
Click to expand...
Click to collapse
i tried custom roms...
one of them is 2.3.5 and the other one is 2.3.4
the two devices are rooted

I have the OEM Samsung adapter and it used to make my phone do the same thing. I sold the phone ans ended up buying another one and the second phone works perfect with it.
I am running the leomar75 rom with the ragemod 1.1b kernel

so you say this is a problem with the device itself?

I also have a generic adapter but mine works for a few seconds and then blank.....not supported. sometimes it gives green screen on my tv. I've tried on stock and custom roms. If it's the phone than it should be addressed t Samsung.
update:
I have to put my phone in offline mode to be able to use it.....

i tried the same cable on other tv...
on the other tv the phone signal stayed on (and i even received a call without any problem) but i still had no WIFI...
maybe its important, but i tried the other tv away from home..
at my home the phone signal is weak all the time

i have a stock phone w/ generic POWERED mhl cable and the wifi cuts off when plugged in. wth?

still no fix for this issue?? i just got a MHL cable yesterday and is really annoying

I called samsung and they said that it is designed to cut off wifi. it may look like u r still connected, but u will be unable to surf the net. they said the reason this was done was to prevent fickering of the video if you were browsing the net or something.

so ,there's no hope than MHL work with wifi?

erebocln said:
so ,there's no hope than MHL work with wifi?
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dont ask me. call samsung. just telling u what they told me. the way it is designed wifi is shut off when mhl cables are used.
would be interesting to see if anyone got wifi to work w/ mhl plugged in.

bms231 said:
dont ask me. call samsung. just telling u what they told me. the way it is designed wifi is shut off when mhl cables are used.
would be interesting to see if anyone got wifi to work w/ mhl plugged in.
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Click to collapse
I have had WIFI working with MHL connected for months. I've could surf the web AND stream flash videos in a room with GPRS coverage ONLY (which rules out the "you were surfing through packet data" variable) while connected to my Samsung HD plasma with no problems.
So I certainly have no idea what your Sammy rep was talking about.
BTW, I'm using the official, korean spec MHL cables I got from ExportPrive. But I'm positive it should work the same with the international MHL cables.

Bought a non Samsung MHL cable today and it worked perfectly fine, it even worked when providing power via a microUSB cable connected from a spare USB socket in my nearby router.
Another user on a forum I frequent has similar issues with WiFi dropping and had this solution:
JAMAL said:
Fixed my mhl problem, I think it was a lack of power as its ok with my HP touchpad 2amp charger
Click to expand...
Click to collapse
So maybe try a different charger?

Another OcUK user
My MHL problem is fixed now, i tested it for 15 minutes and wifi and gsm signal were fine
I was just about to post it in this thread and then saw your post haha
IF anyone decides to mess about with chargers/adapters with higher currents then do it at your own risk and read up if its ok to do so with your phone etc..!

I try with my nokia N900 charger and still nothing, I'm using the official MHL cable

erebocln said:
I try with my nokia N900 charger and still nothing, I'm using the official MHL cable
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Click to collapse
Rom/kernel issue?
I'm using a Nokia AC10X (1200ma charger) + original MHL cable + Siyah 2.1rc2 (at that time, now running 2.1.1) + VR2.4.2 (don't ask) = no connection issues what so ever while in HDMI out.
Either that or it's a hardware problem with the cable or your phone.

eiraku said:
Rom/kernel issue?
I'm using a Nokia AC10X (1200ma charger) + original MHL cable + Siyah 2.1rc2 (at that time, now running 2.1.1) + VR2.4.2 (don't ask) = no connection issues what so ever while in HDMI out.
Either that or it's a hardware problem with the cable or your phone.
Click to expand...
Click to collapse
im using 2.3.5 KI4 rooted , sony bravia tv(two of them) , if I turn the tv off wifi works perfect again even with MHL connected, the HDMI cable is generic, excuse me about my bad english

eiraku said:
Rom/kernel issue?
I'm using a Nokia AC10X (1200ma charger) + original MHL cable + Siyah 2.1rc2 (at that time, now running 2.1.1) + VR2.4.2 (don't ask) = no connection issues what so ever while in HDMI out.
Either that or it's a hardware problem with the cable or your phone.
Click to expand...
Click to collapse
After install Siyah 2.1, everything works excelent!!!!
Thank you so much

USB Host Not Working

Hi guys. So the only thing I've done to my i747 is root it. I've tried both of the USB host apps in the market (USB Host Controller and StickMount) as well as the "SGS3-Easy-UMS" apk that's around, v1.2beta2 and v1.3beta. Can't attach any USB devices. All my flash drives are FAT32 and work well normally. I even ran the USB Host Diagnostics app and it confirmed that Android API, Rooted API, and Kernel "claim support" but no device is detected.
When I connect to sync, I can only do MTP transfers. This is why I looked into that EasyUMS apk because it apparently also allows to mount the phone on the PC as a USB Mass Storage device. During my search I see numerous people connecting flash drives, controllers, keyboards, and even a USB HDD to their sgs3's.
Because that apk requires busybox, and I have busybox, everything looked OK. However, I did once get an error from that APK about possible non-existant Kernel support. USB Host Diags disagree, as do many video tutorials.
Basically I'd like to know whether or not this is supposed to be working, and if not, then how do I go about making it work? I'd like to mount flash drives for easier use with Linux, and would like to mount the phone as UMS for the same reason. I would also like to use a USB Keyboard as well as a USB gamepad. Am I missing something? Are they all using the international?

Are you using a USB OTG cable?
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

drothenberger said:
Are you using a USB OTG cable?
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
got this one, a couple good reviews confirmed that it works with input devices: Amazon product# B005GI2VMG
i mean it's very possible that the seller just buys from random manufacturers without changing the listing. this one that i have is like the cheapest thing on the market so that may be the problem. i wouldn't mind trying a different one for <$5 w/ US shipping if that exists (recommendations?).

Same cable didn't work for me
I bought the same cable, but from a different seller. Amazon ID number B005N55WHI
And I have the same problem. Tried using it with several input devices and with several different roms and I couldn't make it work. Could it be a power issue? Does the USB device that it is being hooked up to have to be powered? I tried it with mice, keyboards, and flash drives, but all of those devices take their power from the bus, not an external source.

glad you posted. hmm. since we both have the same thing and they're both not working, i'm suspecting it's indeed the cable.
i read on a review of a different cable on Amazon where the guy cut open the connector and found no wire connected to one of the pins. i've had thinner-cable wires before that charged/transferred slower than others or didn't work at all on some higher-end devices, could really just be a cheap-out on the manufacturer's end.
i think i'd like to get a different cable. if anyone can recommend an inexpensive one that's confirmed working i'd appreciate it. so i don't have to shoot in the dark.

I got the one with Amazon ID B00871Q5PI and it worked for me. I tried a Dell USB keyboard, a USB mouse, and a USB DAC and they all worked. All take power from the bus.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

got this one.... http://www.amazon.com/dp/B005GI2VMG/ref=pe_175190_21431760_M2T1_ST1_3p_dp_1
would it make a difference if it says its for the galaxy s2 and not the s3? im guessing thats why i cant get it to work.

vvelvetelvis said:
got this one.... http://www.amazon.com/dp/B005GI2VMG/ref=pe_175190_21431760_M2T1_ST1_3p_dp_1
would it make a difference if it says its for the galaxy s2 and not the s3? im guessing thats why i cant get it to work.
Click to expand...
Click to collapse
No, would not make a difference. USB OTG is a standard and for now all devices that have USB OTG work with all USB OTG cables. I've used a cheapass one from Ebay with my S2/Note/S3 for more than a year now.

solved for me
so i got the one drothenberger got (actually that particular link was out of stock for the seller so i got the other suggested one that looks exactly the same, title OTG for SGS3 - item# B00871Q5PI) and i'm in business!!!
someone replied to my negative review of the other one i got in the comments and they said theirs worked. i think they just have different products under the same label or lots of defective ones. i'd recommend to just get the ones that specifically say OTG for SGS3 - the extra dollar or whatever is worth it to save the trouble.
thanks again to everyone for the troubleshooting, hope this topic helps others resolve their issues.

Bluetooth via OTG???

Hi all, ive gave up on the slim chance that there might be a BT chip inside the kindle fire 2. With the release of custom ROMs on our device, is it now possible to get bluetooth working via otg cable? I have a micro BT usb an was wanting to use it for ps3 compatibility so i can play ps1 roms etc wirelessly. I know you can connect a 360 controller cablde to the kindle but imn looking for wireless connectivity.

willieboya said:
Hi all, ive gave up on the slim chance that there might be a BT chip inside the kindle fire 2. With the release of custom ROMs on our device, is it now possible to get bluetooth working via otg cable? I have a micro BT usb an was wanting to use it for ps3 compatibility so i can play ps1 roms etc wirelessly. I know you can connect a 360 controller cablde to the kindle but imn looking for wireless connectivity.
Click to expand...
Click to collapse
I wasn't going to answer because I'm not a dev....but was curious so looked up some stuff.
From what I can see....I can't find anyone doing that, ever. Yet I see a LOT of people saying "No, not possible unless you get a custom ROM" yet....I haven't found anyone that has actually done this!
Not sure why, although since we have devs I will be curious to see their response. No idea why I can't find a SINGLE post of anyone doing it, yet I also haven't seen anyone that has flat out said no, only that you will need a custom ROM.
If we do get it working, it would probably be one of the first times someone has done bluetooth via OTG. If you can find anyone that has done it before though, that may help out.

iytrix said:
I wasn't going to answer because I'm not a dev....but was curious so looked up some stuff.
From what I can see....I can't find anyone doing that, ever. Yet I see a LOT of people saying "No, not possible unless you get a custom ROM" yet....I haven't found anyone that has actually done this!
Not sure why, although since we have devs I will be curious to see their response. No idea why I can't find a SINGLE post of anyone doing it, yet I also haven't seen anyone that has flat out said no, only that you will need a custom ROM.
If we do get it working, it would probably be one of the first times someone has done bluetooth via OTG. If you can find anyone that has done it before though, that may help out.
Click to expand...
Click to collapse
You can't really call it bluetoothe can you? if you use a wired soulotion it is a wireless protocol.

jutley said:
You can't really call it bluetoothe can you? if you use a wired soulotion it is a wireless protocol.
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Click to collapse
Just a usb bluetooth dongle. And, this is most likely never going to work on our device. We don't support usb host...

fmkilo said:
Just a usb bluetooth dongle. And, this is most likely never going to work on our device. We don't support usb host...
Click to expand...
Click to collapse
I seen on the kf1 forum that they have USB host to control a flash drive, Is it different to adding a BT adapter? Obviously you would need drivers for the specific BT adapter you were using
jutley said:
You can't really call it bluetoothe can you? if you use a wired soulotion it is a wireless protocol.
Click to expand...
Click to collapse
Not if u use a micro BT adapter an rip it apart and solder it to USB internally.
Sent from my Amazon Kindle Fire2 using xda app-developers app

willieboya said:
I seen on the kf1 forum that they have USB host to control a flash drive, Is it different to adding a BT adapter? Obviously you would need drivers for the specific BT adapter you were using
Not if u use a micro BT adapter an rip it apart and solder it to USB internally.
Sent from my Amazon Kindle Fire2 using xda app-developers app
Click to expand...
Click to collapse
They use powered hubs... our device wouldn't power the dongle, and you might fry it if you tried to hard wire it into the battery
FMKilo @ forum.xda-developers
freenode irc #kf2-dev

fmkilo said:
They use powered hubs... our device wouldn't power the dongle, and you might fry it if you tried to hard wire it into the battery
FMKilo @ forum.xda-developers
freenode irc #kf2-dev
Click to expand...
Click to collapse
well my plan was to buy a usb dongle, cheap ofcourse, put an external power supply, i.e 5v supply if i cant get one. for talking sakes lets say i use a battery ( i know voltage etc are not same as 5v supplied by normal usb ports) hook red + on battery, black to negative on the battery and add a switch so i can switch it on and off, so the only thing i would then need to take would be the data coming from the kindle itself. From what i can gather cm10 has bluetooth dongle support, if so then it would just be a case of an app looking at usb instead of internal bluetooth. Please correct me if i am wrong ( which i am pretty sure i am ). This is one feature which has let the kf2 down for me. All the others i can live with, even if i only had stock rom and it had bluettoth connectivity, it would be better for me. I hate having ideas but not being able to do anything about it so any advice, tips or reasons as to why it will not work is all good

While im on, does anyone have a kf2 with custom rom, a powered usb hub, an otg cable, a bluetooth dongle and a spare ten mins to check if the dongle is recognised by the kf?

willieboya said:
While im on, does anyone have a kf2 with custom rom, a powered usb hub, an otg cable, a bluetooth dongle and a spare ten mins to check if the dongle is recognised by the kf?
Click to expand...
Click to collapse
Sorry to revive this, but I have a kindle fire 2, rooted with the official cyanogenmod jellybean. I'm later going to order a bluetooth dongle and I already have a powered hub. Being a college student I have a lot of spare time to this sorta thing. I'll check back later if there are replies or if i have done it and have results.
EDIT:
Although some people on this thread have already said that bluetooth doesn't work without a powered hub, you can find videos demonstrating it without a powered hub. I'll also test this later.

Cm10 + otg + bt dongle = works!
I recently about an Onda V973 specifically so that I can load CM onto it but was disappointed that BT wasn't built-in. So I got an OTG cable and a cheap dongle. At first the connection didn't work but after a reboot CM was able to load the drivers for the dongle. Works great! :good:

I am 99% sure Kindle Fire does not have a bluetooth chip. I tried it myself on CM10.2, 10.1, and it doesn't activate. The modem does not have this feature.
It would be interesting to try and mod the tablet that way, though.

usb otg on galaxy tab 3 7.0

is there any way to use usb otg on galaxy tab 3 7.0

Not working yet, but I am working on it now. All wiring is correct internally but the otg phy driver defaults to dock mode. Omce I patch it you will lose dock mode but gain otg.

hey
BinaryDroid said:
Not working yet, but I am working on it now. All wiring is correct internally but the otg phy driver defaults to dock mode. Omce I patch it you will lose dock mode but gain otg.
Click to expand...
Click to collapse
i am limited to 8 thanks a day [really?]
so........THANKS !!!!!!.........[HAH ! , that makes 9] :laugh::good:

moonbutt74 said:
i am limited to 8 thanks a day [really?]
so........THANKS !!!!!!.........[HAH ! , that makes 9] :laugh::good:
Click to expand...
Click to collapse
No problem, I should have it fully going in the next week or so as time permits me. USB OTG is pretty much a requirement for my final goals and i doubt anyone will miss the dock feature. So far my kernel recognizes devices via lsusb and prints vendor info but it might need changes in the rom as well which im gonna tackle now.

Wishing You Success
BinaryDroid said:
No problem, I should have it fully going in the next week or so as time permits me. USB OTG is pretty much a requirement for my final goals and i doubt anyone will miss the dock feature. So far my kernel recognizes devices via lsusb and prints vendor info but it might need changes in the rom as well which im gonna tackle now.
Click to expand...
Click to collapse
hey,
That is the best news I have heard with respect to developement of this device.
Thank you.
m

nice
BinaryDroid said:
Not working yet, but I am working on it now. All wiring is correct internally but the otg phy driver defaults to dock mode. Omce I patch it you will lose dock mode but gain otg.
Click to expand...
Click to collapse
can you tell me what is dock mode i dont know what is dock mod

docking
Anil Shovo said:
can you tell me what is dock mode i dont know what is dock mod
Click to expand...
Click to collapse
A.S.
meaning docking stations as bluetooth-keyboard/tab case combos, audio - home,car,etc., projectors for powerpoint
presentations and so on.
m

who would want a dock support when we are getting otg \m/

link plz
BinaryDroid said:
Not working yet, but I am working on it now. All wiring is correct internally but the otg phy driver defaults to dock mode. Omce I patch it you will lose dock mode but gain otg.
Click to expand...
Click to collapse
plz send downlod link i want to use otg

hi everybody
i just bought one case for the galaxy tab sm-t210 model that came with an usb OTG cable.
it doesnt even power on the usb stick i put. does this happen to you too?
it is relationated with the dock mode you are talking about?

turbohx4700 said:
hi everybody
i just bought one case for the galaxy tab sm-t210 model that came with an usb OTG cable.
it doesnt even power on the usb stick i put. does this happen to you too?
it is relationated with the dock mode you are talking about?
Click to expand...
Click to collapse
our tablet doesnt support usb otg so what the OP is trying to do is whenever you connect your usb, it will use the wiring and stuff of dock mode to load and use usb otg
Sent from my SM-T211 using Tapatalk

so the microusb port has the enough power to power on one flash drive but its blocked by software... good

BinaryDroid said:
Not working yet, but I am working on it now. All wiring is correct internally but the otg phy driver defaults to dock mode. Omce I patch it you will lose dock mode but gain otg.
Click to expand...
Click to collapse
Hows your development going?
Sent from my Galaxy Nexus using Tapatalk

Yeah, any progress @BinaryDroid?

I know for a fact that officially the Samsung Galaxy Tab 3 7.0 does not support USB OTG via the official Samsung Firmware for the device. But I think you guys could get it to work if you use a custom ROM for the device.

This tablet really disappointed me.
The chipset supports USB host:
http://www.marvell.com/communication-processors/pxa986/

official for galaxy tab t110?
and if you could put him whether drivers usb modem zte such as to have 3g on the tablet via a usb modem? Thank you.

mat1371 said:
This tablet really disappointed me.
The chipset supports USB host:
http://www.marvell.com/communication-processors/pxa986/
Click to expand...
Click to collapse
I don;t know how you can be disappointed about a feature the manufacture has always said would NOT be present.

BinaryDroid said:
Not working yet, but I am working on it now. All wiring is correct internally but the otg phy driver defaults to dock mode. Omce I patch it you will lose dock mode but gain otg.
Click to expand...
Click to collapse
You could also do it for the t110?
you could include drivers usb modem to connect a usb skewer?
I'm trying to do this http://www.htcmania.com/showthread.php?t=533210
but the tablet does not recognize the modem could make it work in a t110 please thanks.

franmarina said:
You could also do it for the t110?
you could include drivers usb modem to connect a usb skewer?
I'm trying to do this http://www.htcmania.com/showthread.php?t=533210
but the tablet does not recognize the modem could make it work in a t110 please thanks.
Click to expand...
Click to collapse
I do not have a mainboard for the T110 to work on the kernel or to trace out the layout as I did on the T217. Officially the T217 has no a stripped down set of drivers and its alot of coding to trace the board layout to each GPIO, then get the GPIO numbers, write a shim kernel module to activate host(im hoping to do away with this when I am done), then link it into the ROM itself.....its not an easy task as you can tell.
PS: for the record I will not touch PXA devices lol, hate me or not I just do not like the PXA.
Binarydroid
Michael Pizzileo

Which otg to get for z2 plus

I've come to realize that only a selective amount of OTG cables work on this phone, can someone please recommend some? thanks.

iamgood1738 said:
I've come to realize that only a selective amount of OTG cables work on this phone, can someone please recommend some? thanks.
Click to expand...
Click to collapse
If you've come to realize that only certain ones work, then why aren't you informing us which ones?? I personally didnt know Z2+ did OTG but I guess ROMS can change this..

alchemist83 said:
If you've come to realize that only certain ones work, then why aren't you informing us which ones?? I personally didnt know Z2+ did OTG but I guess ROMS can change this..
Click to expand...
Click to collapse
because i want to know aswell?

As far as I have tested or seen, Any USB C Type OTG cable or connectors work with Z2 Plus.
Here is one such cheap connector I am using for connecting my USB pen / thumb drives.
Working is more depended on data partition of the drive. Some time some ROM finds it difficult detect NTFS. FAT32 works fine most of the time.